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blog.stevenlevithan.com
| | extendsclass.com
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| | Online regular expression tester for Python, PHP, Ruby, JS, Java and MySQL. Regex visualizer. Syntax highlighting. Cheatsheet. Generate string corresponding to a regex.
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| | Ben Nadel demonstrates when to use $N and \N as captured group back references in the Regular Expression (RegEx) engines used by ColdFusion, Java, and Javascript.
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| | czyborra.com
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| [AI summary] The text is a detailed documentation of the GNU unifont project, explaining its purpose, features, and how to use it. It discusses the font's design philosophy, its coverage of Unicode characters, methods for downloading and updating the font, and ways to contribute to the project. The document also includes technical details about the font's structure, tools for working with it, and instructions for adding new characters.